The North Atlantic gets 2.5 centimetres (1in) wider every year.
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In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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The Caspian Sea is also classed as the world's largest lake.
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There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
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There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8